Math, asked by ajmalkhanamazing, 11 months ago

find the value of tan 2a if cos 3a = sin 45

Answers

Answered by memusalman776

3

Answer:

Given that,

cos3a = sin45

cos3a = cos(90-45)

cos3a = cos45

3a = 45

a = 15°,,

Then,

tan 2a= tan 2(15) =tan30°

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